Aldar and the Leprechauns

When a family of elves from Ireland moves to Iceland, they are not welcomed by most of the elf villagers, who have only the heard false stories about leprechauns painting them as greedy, gold hoarding creatures who steal human children. Aldar, a young adult Iceland elf, befriends the strangers. The villagers become more hostile when Aldar's sister starts dating a young leprechaun man. When a little girl mysteriously disappears, the elves blame the leprechauns. How does Aldar help the leprechauns and make the villagers change their misguided attitudes?